Law and ethics.
D004992:Ethics, Medical; D006801:Humans; D007883:Legislation, Medical / Q000941:ethics*; D018458:Persistent Vegetative State / Q000628:therapy; D011788:Quality of Life / Q000331:legislation & jurisprudence*; D012297:Right to Die / Q000941:ethics / Q000331:legislation & jurisprudence; D014481:United States; D026712:Value of Life